IMSA GTP BOP standings for Road Atlanta, where the Acura ARX-06 GTP dominates at 1:09.538, recommended for its braking, front-end bite, and precision driving. BMW is second, smooth to drive but prone to understeer, while Ferrari is third with strong rotation but high difficulty due to oversteer and braking sensitivity. Porsche struggles with front-end bite and overall pace, and Cadillac is last, noted as aggressive with good kerb handling but oversteer-prone. Weather conditions for testing were warm (27.7°C), humid (75%), and mostly cloudy.
IMSA GTD BOP results for Road Atlanta, with the Ford Mustang GT3 leading at 1:17.712, recommended for its kerb performance and straight-line speed but criticized for poor fuel economy. The Ferrari 296 GT3 and Mercedes AMG GT3 2020 follow, with solid pace and strong acceleration but some understeer. McLaren, Acura, and BMW are mid-tier, often struggling with kerbs, traction, or cornering bite. Lower-ranked cars—Chevrolet, Lamborghini, Audi, and Porsche—generally lack pace or balance, though some excel at kerb handling or rotation.
GT Sprint BOP rankings for Road America, with the McLaren 720S GT3 EVO topping the list at 2:01.592, recommended for its rotation, wet-weather performance, and ease of driving. The Ferrari 296 GT3 and Ford Mustang GT3 follow closely, praised for rotation, stability, and traction on exits. BMW and Mercedes are mid-pack, both easy to drive but with understeer tendencies. Lower-ranked cars like Chevrolet, Lamborghini, Porsche, Audi, and Acura generally suffer from oversteer, understeer, or lack of pace, though some have good low-speed rotation or exit traction.